Irrigation Suitability Assessment of Groundwater in an Open Mining Area in Grassland Area

SHAN CHONG, WEN-FENG DU, YUN-LAN HE, ZHEN-GUO XING, LEI CHEN

Abstract


In this paper, the investigation of groundwater in open-pit coal mine in grassland was carried out. The hydrochemical parameters of groundwater were detected. The chemical types of the groundwater were analyzed. The temporal variation characteristics of groundwater parameters were studied, and the suitability of the irrigation water quality was analyzed. The results showed that the main hydrochemical types of groundwater were SO4 2-•Cl--Na+•Mg2+ and SO4 2-•Cl--Na+•Mg2+(Ca2+). USSL analysis showed that most of the groundwater samples in the study area belonged to the type of high salinization and low alkali damage. Wilcox diagram analysis showed that most of the groundwater was in good and usable water quality area, and no groundwater sample was in unusable area. The results of single factor index SAR, %Na, RSC and PI analysis showed that most of groundwater was suitable for irrigation. Therefore, the groundwater in the study area was generally suitable for irrigation in pastoral areas. This study is of great significance to the rational development and utilization of groundwater resources.

Keywords


Groundwater, Hydrochemical, Irrigation suitabilityText


DOI
10.12783/dteees/peems2019/33949

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